EP0052423B1 - Press-étoupe - Google Patents

Press-étoupe Download PDF

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Publication number
EP0052423B1
EP0052423B1 EP81304808A EP81304808A EP0052423B1 EP 0052423 B1 EP0052423 B1 EP 0052423B1 EP 81304808 A EP81304808 A EP 81304808A EP 81304808 A EP81304808 A EP 81304808A EP 0052423 B1 EP0052423 B1 EP 0052423B1
Authority
EP
European Patent Office
Prior art keywords
casing
tubular member
shaft
end wall
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81304808A
Other languages
German (de)
English (en)
Other versions
EP0052423A1 (fr
Inventor
John Parker Butterfield
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jude Engineering Inc
Original Assignee
Jude Engineering Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jude Engineering Inc filed Critical Jude Engineering Inc
Publication of EP0052423A1 publication Critical patent/EP0052423A1/fr
Application granted granted Critical
Publication of EP0052423B1 publication Critical patent/EP0052423B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/54—Other sealings for rotating shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/187—Self-aligning stuffing-boxes

Definitions

  • This invention relates to stuffing boxes of the kind disclosed in FR-A-2441773 which prevent escape of gases from a container out of which a shaft projects while at the same time permitting movements of the shaft apart from its normal rotary movements around its axis.
  • the screw is located in a housing through which a driving shaft projects for driving the screw.
  • the screw may be many feet long and can have somewhat gyratory or whipping movements and therefore some clearance must be provided between the driving shaft and the housing wall so that hot gases can escape.
  • the present invention provides a stuffing box particularly well suited for surrounding the driving shaft to prevent escape of gas while permitting the movements of the shaft.
  • a stuffing box comprising a hollow casing to surround a shaft, an end wall attached to one end of the casing, a tubular member located within the casing, bearing and sealing means within said tubular member surrounding and engaging said shaft, an annular bellows having one circular end fixed in a gas tight manner to the casing adjacent to the end wall and its other circular end surrounding the tubular member and fixed to it in a gas tight manner, and adjusting means comprising an annular member having one end within the casing in engagement with the bearing means characterized by a flange on its other end outside the casing and screws passing through the flange and passing through the end wall with clearance and engaging in a flange on the end of said tubular member adjacent to the end wall and in that the other circular end of the bellows is fixed to the tubular member at its end remote from the end wall.
  • the reference 10 indicates the end wall of a housing 13 which contains a shaft 11 which carries a helical conveyer flight 16.
  • the shaft 11 projects through the wall 10 with a clearance at 15.
  • the stuffing box comprises a tubular casing 17 which surrounds the shaft 11 and has a flange 18 at one end to be secured to the wall 10 in a gas tight manner. Also surrounding the shaft within the casing is a tubular member 20 having an internal flange 21 at one end which serves as an abutment for the end of a series of rings i.e. carbon bearing rings 22, 23 and asbestos type sealing rings 24. At the other end of the casing there is an end wall 27 attached to it by bolts 28. This end wall 27 also locates a tubular member 30 which engages the other end of the rings and is adjustable axially of the shaft by screws 31 so as to hold the series of rings against the abutment flange 21.
  • a metal bellows 34 has one circular end fixed in gas tight manner to the casing at 35 adjacent to the end wall and has its other circular end fixed in gas tight manner ⁇ ;It 36 to the tubular member 20 thus providing a sealed space 37 to contain any gas which may escape from the clearance 15.
  • the driving shaft may contain various pipes or channels for supply of material to be treated to the housing, and water or other cooling or heating material.
  • the screws 31 pass through a flange on the end of the member 30, through the wall 27 with adequate clearance so as to hold the member 30 against rotation while permitting tilting movements of the shaft with the parts carried by it, and engages in a flange 20A on the end of the member 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screw Conveyors (AREA)
  • Mechanical Sealing (AREA)
  • Diaphragms And Bellows (AREA)
  • Details Of Valves (AREA)
  • Sealing Devices (AREA)

Claims (2)

1. Un presse étoupe, comportant un boîtier creux (17) entourant un arbre (11), une paroi de fond (27) reliée à une extrémité du boîtier, un élément tubulaire (20) disposé à l'intérieur du boîtier (17), des moyens de palier et d'étanchéité (22-24) montés à l'intérieur de l'élément tubulaire (20), entourant et au contact de l'arbre (11), un soufflet annulaire (34) ayant une extrémité circulaire fixée sur le boîtier (17) de façon étanche, en étant adjacente à la paroi de fond (27), son autre extrémité circulaire entourant l'élément tubulaire (20) et étant fixée à celui-ci de façon étanche, et des moyens d'ajustement, comprenant un manchon annulaire (30) ayant une extrémité à l'intérieur du boîtier (17) s'engageant dans les moyens de palier (22-24), caractérisé en ce que le manchon comporte à son autre extrémité à l'extérieur du boîtier, un flasque, des vis (31) traversant avec jeu le flasque et la paroi de fond, et coopérant avec une bride (20a) prévue à l'extrémité de l'élément tubulaire (20) adjacente à la paroi de fond (27) et en ce que l'autre extrémité circulaire du soufflet (34) est fixée à l'élément tubulaire (20) à son extrémité opposée à la paroi de fond (27).
2. Presse étoupe selon la revendication 1, caractérisé en ce que les moyens de palier d'étanchéité comportent un assemblage d'anneaux de carbone (22-23) et d'anneaux d'amiante (24), qui remplissent substantiellement l'élément tubulaire (20).
EP81304808A 1980-11-14 1981-10-15 Press-étoupe Expired EP0052423B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US207203 1980-11-14
US06/207,203 US4330135A (en) 1980-11-14 1980-11-14 Stuffing box with bellows to allow shaft gyratory movements

Publications (2)

Publication Number Publication Date
EP0052423A1 EP0052423A1 (fr) 1982-05-26
EP0052423B1 true EP0052423B1 (fr) 1985-05-08

Family

ID=22769591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81304808A Expired EP0052423B1 (fr) 1980-11-14 1981-10-15 Press-étoupe

Country Status (4)

Country Link
US (1) US4330135A (fr)
EP (1) EP0052423B1 (fr)
CA (1) CA1162209A (fr)
DE (1) DE3170415D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408769A (en) * 1982-09-21 1983-10-11 Jude Engineering, Inc. Stuffing box with outer flexible tube to allow shaft gyratory movements
US4577873A (en) * 1985-03-29 1986-03-25 Baumann Hans D Dual valve stem packing arrangement
HU201389B (en) * 1987-07-10 1990-10-28 Richter Gedeon Vegyeszet Device for sealed leading axles of large deflection through the connecting branch of closed vessel
AU2402695A (en) * 1994-05-04 1995-11-29 Jean Gosselin Packing box for fluid displacement device
US20020113375A1 (en) * 2001-02-20 2002-08-22 Gennady Ruderman Pressure differential sealing device
US7530603B2 (en) * 2006-06-16 2009-05-12 General Electric Company Pipe penetration system
US8616555B2 (en) * 2008-10-13 2013-12-31 Schlumberger Technology Corporation Packing assembly for reciprocating pumps
ITUD20120131A1 (it) * 2012-07-20 2014-01-21 Danieli Off Mecc Dispositivo di tenuta, in particolare per un albero inserito trasversalmente in un contenitore di fluidi in pressione o di materiale granulare in movimento
RU2543906C1 (ru) * 2014-01-16 2015-03-10 Геннадий Васильевич Шокало Сильфонно-графлексное уплотнение штока арматуры с сухим трением скольжения

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR865412A (fr) * 1939-04-19 1941-05-23 Standard Oil Dev Co Disposition de joint étanche
DE965545C (de) * 1953-08-11 1957-06-13 Klein Schanzlin & Becker Ag Stopfbuechse zum Abdichten von Wellendurchfuehrungen
US3178190A (en) * 1960-05-28 1965-04-13 Edison Soc Fluid-tight sealing device for rotating bodies
DE1525951A1 (de) * 1966-01-28 1969-05-14 Inst Armaturen Dichtungsanordnung fuer druckdichtende Deckel
US3666276A (en) * 1969-12-11 1972-05-30 Dev Des Ind Modernes Soc Et Device for the sealing of a rotatable shaft
US4270762A (en) * 1977-05-03 1981-06-02 Coaltek Corporation Disperser seal and method
FR2441773A1 (fr) * 1978-11-16 1980-06-13 Cefilac Nouveau dispositif d'etancheite pour passage d'arbre rotatif a travers une paroi

Also Published As

Publication number Publication date
DE3170415D1 (en) 1985-06-13
US4330135A (en) 1982-05-18
CA1162209A (fr) 1984-02-14
EP0052423A1 (fr) 1982-05-26

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